Yes, USB OTG cable, Stock ROM 4.4.2 (KOT49I.V50020b), Player: I think it does not matter, all audio output is redirected to DAC, but Poweramp, Google Play Music and MXPlayer works for me.

Thanks. I have 4.2.2 stock, USB OTG cable (works with flash drives), PowerAmp Pro, but I can't get audio through my Audioquest Dragonfly. In fact, when I plug in the Dragonfly it locks up the G Pad. I have to restart it to get it to function again.

Yes, I turn on USB debugging in Developer options (for rooting). But I think that it doesn't affect the DAC function. I guess that it depeds on which a USB controller DAC contains (and kernel supports). FiiO and Audioquest using different USB conreller. Fiio E-10 using TE7022L and Audioquest Dragonfly has TAS1020B . You should try conect ot by a powered USB hub..

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